4278541166768 has 80 divisors (see below), whose sum is σ = 9091940971392. Its totient is φ = 1934338560000.

The previous prime is 4278541166689. The next prime is 4278541166773. The reversal of 4278541166768 is 8676611458724.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59418755 + ... + 59490717.

Almost surely, 2^{4278541166768} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4278541166768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4545970485696).

4278541166768 is an abundant number, since it is smaller than the sum of its proper divisors (4813399804624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4278541166768 is a wasteful number, since it uses less digits than its factorization.

4278541166768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73794 (or 73788 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 65.

The spelling of 4278541166768 in words is "four trillion, two hundred seventy-eight billion, five hundred forty-one million, one hundred sixty-six thousand, seven hundred sixty-eight".